document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1155124>Question 1155124</A>: <I><SPAN STYLE=\"word-break: break-all;\"> For a ground temperature of 15°C, the air temperature (t) at an altitude of 500 m (h) is 10°C. At 2000 m, the air temperature is -5°C. Use the ordered pairs (h,t).\r<BR>\n" );
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document.write( "a. Find a linear equation for these data points.\r<BR>\n" );
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document.write( "b. Use this linear equation to find the air temperature at 1500 m. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #777678 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=777678\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> For a ground temperature of 15°C, the air temperature (t) at an altitude of 500 m (h) is 10°C. At 2000 m, the air temperature is -5°C. Use the ordered pairs (h,t).<BR>\n" );
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document.write( "To do what?  You didn't say.<BR>\n" );
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document.write( "(15 - 10)/500 = 0.01°C/meter<BR>\n" );
document.write( "(-5 - 15)/2000 ---> 0.01°C/meter<BR>\n" );
document.write( "The 3 points are colinear. </SPAN>\n" );
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